| Roll | ? ?. 0 0 0 | Deal |
|
? y yields a uniform random selection from the
population i.y if y is a positive integer, or from
the interval of numbers greater than or equal to 0 and less than 1,
if y is 0. The random seed used begins
at 7^5 (16807).
|
x ? y is a list of x items randomly chosen
without repetition from i.y .
|
?. 6
0
?. 6 6 6 6 6 6 6 6
0 5 5 4 2 3 2 1
6 ?. 6 A random permutation
0 1 5 4 3 2
mean=: +/ % #
mean ?. 1000 # 6
2.459
] m=: ?. 4 4 $ 9 A random matrix for experimentation
3 8 8 4
2 0 2 7
4 2 3 5
1 1 7 2
-/ . * m The determinant of m
_659
f=: ?.@$ % ] - 1:
3 6 f 9 Random 3 by 6 table in range zero to one with resolution 9
0.375 1 1 0.5 0.25 0
0.25 0.875 0.5 0.25 0.375 0.625
0.125 0.125 0.875 0.25 0.875 0.75
The random seed (a beginning value for the pseudo-random
number generator) is set by the foreign conjunction
using 9!:1, and queried with 9!:0 .
The algorithm is GB_Flip (Knuth [15]) with a period length
of at least _1+2^55 .